Appreciating the importance of robust understanding of human motion and its emotional intention, this research assesses the relevance of the Laban Effort system in classifying movement quality as it applies to the design of gestural interfaces. Labeling of Laban Efforts and affect in human motion by 14 participants demonstrated that non-expert humans can recognize a subset of the Laban Efforts with a reasonable degree of inter-rater reliability - ICC(2, k)=0.78- and validity-F1-Score=0.76. This study also includes a preliminary exploration of relationships between different emotions and Laban Efforts.